<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>简单加法器计算</title>
    <script>
        var num1 = prompt("请您输入第一个值：")
        var num2 = prompt("请您输入第二个值：")
        alert("您的结果是：" + (parseFloat(num1) + parseFloat(num2)))
    </script>
</head>

<body>

</body>

</html>